478880677 has 16 divisors (see below), whose sum is σ = 559873152. Its totient is φ = 405155520.

The previous prime is 478880659. The next prime is 478880687. The reversal of 478880677 is 776088874.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-478880677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478880627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16218 + ... + 34939.

It is an arithmetic number, because the mean of its divisors is an integer number (34992072).

Almost surely, 2^478880677 is an apocalyptic number.

It is an amenable number.

478880677 is a deficient number, since it is larger than the sum of its proper divisors (80992475).

478880677 is a wasteful number, since it uses less digits than its factorization.

478880677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51228.

The product of its (nonzero) digits is 4214784, while the sum is 55.

The square root of 478880677 is about 21883.3424549359. The cubic root of 478880677 is about 782.3644432372.

The spelling of 478880677 in words is "four hundred seventy-eight million, eight hundred eighty thousand, six hundred seventy-seven".